1 /**************************************************************************** 2 * Copyright (c) 1998-2004,2007 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Juergen Pfeifer, 1995,1997 * 31 ****************************************************************************/ 32 33 #include "form.priv.h" 34 35 MODULE_ID("$Id: fld_ftlink.c,v 1.13 2007/10/13 19:30:35 tom Exp $") 36 37 /*--------------------------------------------------------------------------- 38 | Facility : libnform 39 | Function : FIELDTYPE *link_fieldtype( 40 | FIELDTYPE *type1, 41 | FIELDTYPE *type2) 42 | 43 | Description : Create a new fieldtype built from the two given types. 44 | They are connected by an logical 'OR'. 45 | If an error occurs, errno is set to 46 | E_BAD_ARGUMENT - invalid arguments 47 | E_SYSTEM_ERROR - system error (no memory) 48 | 49 | Return Values : Fieldtype pointer or NULL if error occurred. 50 +--------------------------------------------------------------------------*/ 51 NCURSES_EXPORT(FIELDTYPE *) 52 link_fieldtype(FIELDTYPE *type1, FIELDTYPE *type2) 53 { 54 FIELDTYPE *nftyp = (FIELDTYPE *)0; 55 56 T((T_CALLED("link_fieldtype(%p,%p)"), type1, type2)); 57 if (type1 && type2) 58 { 59 nftyp = typeMalloc(FIELDTYPE, 1); 60 61 if (nftyp) 62 { 63 T((T_CREATE("fieldtype %p"), nftyp)); 64 *nftyp = *_nc_Default_FieldType; 65 nftyp->status |= _LINKED_TYPE; 66 if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS)) 67 nftyp->status |= _HAS_ARGS; 68 if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE)) 69 nftyp->status |= _HAS_CHOICE; 70 nftyp->left = type1; 71 nftyp->right = type2; 72 type1->ref++; 73 type2->ref++; 74 } 75 else 76 { 77 SET_ERROR(E_SYSTEM_ERROR); 78 } 79 } 80 else 81 { 82 SET_ERROR(E_BAD_ARGUMENT); 83 } 84 returnFieldType(nftyp); 85 } 86 87 /* fld_ftlink.c ends here */ 88